Electric bell.



G. L. PATTERSON.

ELECTRIC BELL.

APPLICATION rum) um 28, 1901.

Patented Oct. 13,1908.

1-H: NORRIS PETERS cm, WASHINGTON. a. c.

UNITED STATES PATENT oEEIoE.

GEORGE LEWIS PATTERSON, OF NEW YORK, N. Y., ASSIGNOR TO ALICE O.PATTERSON, OF NEW YORK, N. Y.

ELEc'rruo BELL.

Specification of Letters Patent.

Patented Oct. 13, 1908.

Application filed September 28, 1907. Serial No. 394,943.

T 0 all whom it may concern:

Be it known that I, GEORGE LEw1s PAT- TERSON, a citizen of the UnitedStates, residing in the city, county, and State of New York, haveinvented certain new and useful Improvements in Electric Bells, of whichthe following is a full, clear, and exact description.

My invention relates to signals and more particularly to improvements inelectrically operated bells and the like.

In electric bells it is customary to provide a protecting cover for theelectro magnet and other operating parts.

The object of my invention is to provide a cover of such construction asto more perfectly protect the operating mechanism.

In the accompanying drawings, I have shown my improved cover aspreferably constructed, but it is to be understood that changes may bemade in details without departing from the scope of the invention.

In the drawings Figure 1 is a top plan View of a bell frame andoperating mechanism of an electric bell with the cover removed. Fig. 2is a front elevation of a part of the frame and cover, showing thehammer rod opening, said view being relatively enlarged. Fig. 3 is aside view of the same parts, the cover being partly shown in section.

1 represents the bell frame of usual form, having an extended base forthe mounting of the operating mechanism. 2 is the protecting cover forsaid mechanism adapted to be secured on the base frame 1. 3 is anopening in the side of the cover to allow for the vibration of thehammer rod 4:, which extends therethrough. 5 is a flange around thebottom of the cover 2, having a recess 6 on the 10 inthe latter.

2 at this point. This opening 3 affords easy access for dampness, dirtor other foreign substance. To close the opening 3 without obstructingthe operation of the hammer arm 4:, I provide a shield 9, fitting neatlyaround the hammer arm 4. 11 is a bracket lip or casting formed on orsecured to the base 1 adjacent to the opening 3, and of such height andwidth as to substantially close said opening beneath the path of thehammer arm 4. 12 is a stud on the bracket 11, adapted to engagetheshield 9 through a slot The shield 9 and bracket 11 together entirelyclose the opening 3. So far as necessary, the shield 9 will both slideand swing on stud 12 and thus freely follow the vibrations of the hammerrod.

From the foregoing it will be seen that the packing strip 7 makes aneffective joint between the cover and the base, so that with theassistance of the shield 9 the interior mechanism will be protected atall times against dust and dam ness. While the shield as shown is pivoteto the base it is in efiect a part of the protecting cover when theparts are assembled.

It will be seen that the two parts 2 and 9 form, in effect, whenassembled, a twoart cover or protector for the interior mec anism.

What I claim is 1. In an electric bell, the combination of a base, acover secured thereto having a slot, a vibrating hammer rod passingthrough said slot, a bracket below the path of operation of the hammerrod inline with said slot, a shield located between the bracket and saidcover, and a stud and slot connection between said bracket and shield. I

2. In an electricbell, the combination of a base, a cover securedthereto having a slot, a vibrating hammer rod passing through said slot,a bracket below the path of operation of the hammer rod in line withsaid slot, a shield arranged between the bracket and said cover, a slotin said bracket, and a stud on the shield standing in said slot.

GEORGE LEWIS PATTERSON.

Witnesses:

LANGDON MOORE, CHAS. A. PEARD.

